<section id="example-choice-list" class="example-choice-list large" data-property="mask-type">
    <div class="example-choice" initial-choice="true">
        <pre><code class="language-css">mask-type: luminance;</code></pre>
        <button type="button" class="copy hidden" aria-hidden="true">
            <span class="visually-hidden">Copy to Clipboard</span>
        </button>
    </div>

    <div class="example-choice">
        <pre><code class="language-css">mask-type: alpha;</code></pre>
        <button type="button" class="copy hidden" aria-hidden="true">
            <span class="visually-hidden">Copy to Clipboard</span>
        </button>
    </div>
</section>

<div id="output" class="output large hidden">
    <section id="default-example" class="default-example">
        <img class="box" src="/media/examples/balloon-small.jpg" />
        <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="0" height="0">
            <defs>
                <mask id="example-element" maskContentUnits="objectBoundingBox">
                    <rect x=".1" y=".1" width=".8" height=".8" fill="red" fill-opacity="0.5"/>
                </mask>
            </defs>
        </svg>
    </section>
</div>
